E DIN EN IEC 61643-21 VDE 0845-3-1:2025-11
Low voltage surge protective devices
Part 21: Surge protective devices connected to telecommunications and signalling networks # Requirements and testing methods
(IEC 37A/414/CDV:2024); German and English version prEN IEC 61643-21:2024
Class/Status:
Draft,
valid
Released: 2025 -11 Published:
2025-10 -31
VDE Art. No.: 1800913
End of objection deadline:
2025-12-31